B777 first officer discovered an acrid smell at FL350 enroute from asia; donned his oxygen mask and ...

Narrative:

Approaching the half waypoint of our pacific crossing I detected a very acrid smell. I put on my oxygen mask as the cockpit started to take on smoke. The captain was notified and quickly came to the flight deck and assumed control from the other relief pilot. I continued to fly as the second relief pilot. All of us noted the visible smoke and strong smell. We finally got a status message revealing we had an ee compartment fan inoperative. We placed a satcom call to maintenance for assistance. They noted the same indication and verified the symptoms as indicated. As the smoke and smell dissipated; the other relief pilot went into the ee compartment and pulled the affected circuit breaker. We monitored the situation as we continued toward our closest suitable alternate. With no other indications of a problem and the smoke and or fumes no longer detectable. We proceeded to destination for an uneventful landing.

Original NASA ASRS Text

Title: B777 First Officer discovered an acrid smell at FL350 enroute from Asia; donned his oxygen mask and informed the Captain on break. After some time a status message indicates the failure of an EE compartment fan; the circuit breaker was pulled and flight continued to destination.

Narrative: Approaching the half waypoint of our Pacific crossing I detected a very acrid smell. I put on my Oxygen mask as the cockpit started to take on smoke. The Captain was notified and quickly came to the flight deck and assumed control from the other relief pilot. I continued to fly as the second relief pilot. All of us noted the visible smoke and strong smell. We finally got a status message revealing we had an EE compartment fan inoperative. We placed a SATCOM call to Maintenance for assistance. They noted the same indication and verified the symptoms as indicated. As the smoke and smell dissipated; the other relief pilot went into the EE compartment and pulled the affected circuit breaker. We monitored the situation as we continued toward our closest suitable alternate. With no other indications of a problem and the smoke and or fumes no longer detectable. We proceeded to destination for an uneventful landing.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	860199
Time
Date	200911
Aircraft 1
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Route In Use	Oceanic
Flight Plan	IFR
Component
Aircraft Component	Cooling Fan any cooling fan
Person 1
Function	Relief Pilot Pilot Flying
Events
Anomaly	Aircraft Equipment Problem Less Severe Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

B777 first officer discovered an acrid smell at FL350 enroute from asia; donned his oxygen mask and informed the captain on break. After some time a status message indicates the failure of an ee compartment fan; the circuit breaker was pulled and flight continued to destination.